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Diffstat (limited to 'sys/scsi/ss_mustek.c')
-rw-r--r--sys/scsi/ss_mustek.c646
1 files changed, 0 insertions, 646 deletions
diff --git a/sys/scsi/ss_mustek.c b/sys/scsi/ss_mustek.c
deleted file mode 100644
index 4b0aab182b2..00000000000
--- a/sys/scsi/ss_mustek.c
+++ /dev/null
@@ -1,646 +0,0 @@
-/* $OpenBSD: ss_mustek.c,v 1.27 2010/07/01 05:11:18 krw Exp $ */
-/* $NetBSD: ss_mustek.c,v 1.4 1996/05/05 19:52:57 christos Exp $ */
-
-/*
- * Copyright (c) 1995 Joachim Koenig-Baltes. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Joachim Koenig-Baltes.
- * 4. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * special driver for MUSTEK flatbed scanners MFS 06000CX and MFS 12000CX
- * these scanners come with their own scsi card, containing an NCR53C400
- * SCSI controller chip. I'm in the progress of writing a driver for this
- * card to work under NetBSD-current. I've hooked it up to a Seagate ST01
- * hostadapter in the meantime, giving 350KB/sec for higher resolutions!
- *
- * I tried to connect it to my Adaptec 1542B, but with no success. It seems,
- * it does not like synchronous negotiation between Hostadapter and other
- * targets, but I could not turn this off for the 1542B.
- *
- * There is also an other reason why you would not like to connect it to your
- * favourite SCSI host adapter: The Mustek DOES NOT DISCONNECT. It will block
- * other traffic from the bus while a transfer is active.
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/kernel.h>
-#include <sys/systm.h>
-#include <sys/fcntl.h>
-#include <sys/errno.h>
-#include <sys/ioctl.h>
-#include <sys/buf.h>
-#include <sys/proc.h>
-#include <sys/device.h>
-#include <sys/conf.h> /* for cdevsw */
-#include <sys/scanio.h>
-
-#include <scsi/scsi_all.h>
-#include <scsi/scsi_scanner.h>
-#include <scsi/scsiconf.h>
-#include <scsi/ssvar.h>
-#include <scsi/ss_mustek.h>
-
-int mustek_set_params(struct ss_softc *, struct scan_io *);
-int mustek_trigger_scanner(struct ss_softc *);
-void mustek_minphys(struct ss_softc *, struct buf *);
-int mustek_read(struct ss_softc *, struct scsi_xfer *xs, struct buf *);
-void mustek_read_done(struct scsi_xfer *);
-int mustek_rewind_scanner(struct ss_softc *);
-
-/* only used internally */
-int mustek_get_status(struct ss_softc *, int, int);
-void mustek_compute_sizes(struct ss_softc *);
-
-/*
- * structure for the special handlers
- */
-struct ss_special mustek_special = {
- mustek_set_params,
- mustek_trigger_scanner,
- NULL,
- mustek_minphys,
- mustek_read,
- mustek_rewind_scanner,
- NULL, /* no adf support right now */
- NULL /* no adf support right now */
-};
-
-/*
- * mustek_attach: attach special functions to ss
- */
-void
-mustek_attach(ss, sa)
- struct ss_softc *ss;
- struct scsi_attach_args *sa;
-{
-#ifdef SCSIDEBUG
- struct scsi_link *sc_link = sa->sa_sc_link;
-#endif
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_attach: start\n"));
- ss->sio.scan_scanner_type = 0;
-
- printf("\n%s: ", ss->sc_dev.dv_xname);
-
- /* first, check the model which determines resolutions */
- if (!bcmp(sa->sa_inqbuf->product, "MFS-06000CX", 11)) {
- ss->sio.scan_scanner_type = MUSTEK_06000CX;
- printf("Mustek 6000CX Flatbed 3-pass color scanner, 3 - 600 dpi\n");
- }
- if (!bcmp(sa->sa_inqbuf->product, "MFS-12000CX", 11)) {
- ss->sio.scan_scanner_type = MUSTEK_12000CX;
- printf("Mustek 12000CX Flatbed 3-pass color scanner, 6 - 1200 dpi\n");
- }
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_attach: scanner_type = %d\n",
- ss->sio.scan_scanner_type));
-
- /* install special handlers */
- ss->special = mustek_special;
-
- mustek_compute_sizes(ss);
-}
-
-/*
- * check the parameters if the mustek is capable of fulfilling it
- * but don't send the command to the scanner in case the user wants
- * to change parameters by more than one call
- */
-int
-mustek_set_params(ss, sio)
- struct ss_softc *ss;
- struct scan_io *sio;
-{
- int error;
-
- /*
- * if the scanner is triggered, then rewind it
- */
- if (ss->flags & SSF_TRIGGERED) {
- error = mustek_rewind_scanner(ss);
- if (error)
- return (error);
- }
-
- /* size constraints: 8.5" horizontally and 14" vertically */
-#ifdef MUSTEK_INCH_SPEC
- /* sizes must be a multiple of 1/8" */
- sio->scan_x_origin -= sio->scan_x_origin % 150;
- sio->scan_y_origin -= sio->scan_y_origin % 150;
- sio->scan_width -= sio->scan_width % 150;
- sio->scan_height -= sio->scan_height % 150;
-#endif
- if (sio->scan_width == 0 ||
- sio->scan_x_origin + sio->scan_width > 10200 ||
- sio->scan_height == 0 ||
- sio->scan_y_origin + sio->scan_height > 16800)
- return (EINVAL);
-
- /*
- * for now, only realize the values for the MUSTEK_06000CX
- * in the future, values for the MUSTEK_12000CX will be implemented
- */
-
- /*
- * resolution (dpi) must be <= 300 and a multiple of 3 or
- * between 300 and 600 and a multiple of 30
- */
- sio->scan_x_resolution -= sio->scan_x_resolution <= 300 ?
- sio->scan_x_resolution % 3 : sio->scan_x_resolution % 30;
- sio->scan_y_resolution -= sio->scan_y_resolution <= 300 ?
- sio->scan_y_resolution % 3 : sio->scan_y_resolution % 30;
- if (sio->scan_x_resolution < 3 || sio->scan_x_resolution > 600 ||
- sio->scan_x_resolution != sio->scan_y_resolution)
- return (EINVAL);
-
- /* assume brightness values are between 64 and 136 in steps of 3 */
- sio->scan_brightness -= (sio->scan_brightness - 64) % 3;
- if (sio->scan_brightness < 64 || sio->scan_brightness > 136)
- return (EINVAL);
-
- /* contrast values must be between 16 and 184 in steps of 7 */
- sio->scan_contrast -= (sio->scan_contrast - 16) % 7;
- if (sio->scan_contrast < 16 || sio->scan_contrast > 184)
- return (EINVAL);
-
- /*
- * velocity: between 0 (fast) and 4 (slow) which will be mapped
- * to 100% = 4, 80% = 3, 60% = 2, 40% = 1, 20% = 0
- * must be a multiple of 20
- */
- sio->scan_quality -= sio->scan_quality % 20;
- if (sio->scan_quality < 20 || sio->scan_quality > 100)
- return (EINVAL);
-
- switch (sio->scan_image_mode) {
- case SIM_BINARY_MONOCHROME:
- case SIM_DITHERED_MONOCHROME:
- case SIM_GRAYSCALE:
- case SIM_RED:
- case SIM_GREEN:
- case SIM_BLUE:
- break;
- default:
- return (EINVAL);
- }
-
- /* change ss_softc to the new values, but save ro-variables */
- sio->scan_scanner_type = ss->sio.scan_scanner_type;
- bcopy(sio, &ss->sio, sizeof(struct scan_io));
-
- mustek_compute_sizes(ss);
-
- return (0);
-}
-
-/*
- * trim the requested transfer to a multiple of the line size
- * this is called only from ssread() which guarantees, scanner is triggered
- * In the future, it will trim the transfer to not read to much at a time
- * because the mustek cannot disconnect. It will be calculated by the
- * resolution, the velocity and the number of bytes per line.
- */
-void
-mustek_minphys(ss, bp)
- struct ss_softc *ss;
- struct buf *bp;
-{
-#ifdef SCSIDEBUG
- struct scsi_link *sc_link = ss->sc_link;
-#endif
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_minphys: before: %ld\n",
- bp->b_bcount));
- bp->b_bcount -= bp->b_bcount %
- ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8);
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_minphys: after: %ld\n",
- bp->b_bcount));
-}
-
-/*
- * trigger the scanner to start a scan operation
- * this includes sending the mode- and window-data, starting the scanner
- * and getting the image size info
- */
-int
-mustek_trigger_scanner(ss)
- struct ss_softc *ss;
-{
- struct mustek_mode_select_cmd mode_cmd;
- struct mustek_mode_select_data mode_data;
- struct mustek_set_window_cmd window_cmd;
- struct mustek_set_window_data window_data;
- struct mustek_start_scan_cmd start_scan_cmd;
- struct scsi_link *sc_link = ss->sc_link;
- int pixel_tlx, pixel_tly, pixel_brx, pixel_bry, paperlength;
- int error;
-
- mustek_compute_sizes(ss);
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner\n"));
-
- /*
- * set the window params and send the scsi command
- */
- bzero(&window_cmd, sizeof(window_cmd));
- window_cmd.opcode = MUSTEK_SET_WINDOW;
- window_cmd.length = sizeof(window_data);
-
- bzero(&window_data, sizeof(window_data));
- window_data.frame.header = MUSTEK_LINEART_BACKGROUND | MUSTEK_UNIT_SPEC;
-#ifdef MUSTEK_INCH_SPEC
- /* the positional values are all 1 byte because 256 / 8 = 32" */
- pixel_tlx = ss->sio.scan_x_origin / 150;
- pixel_tly = ss->sio.scan_y_origin / 150;
- pixel_brx = pixel_tlx + ss->sio.scan_width / 150;
- pixel_bry = pixel_tly + ss->sio.scan_height / 150;
-#else
- pixel_tlx = (ss->sio.scan_x_origin * ss->sio.scan_x_resolution) / 1200;
- pixel_tly = (ss->sio.scan_y_origin * ss->sio.scan_y_resolution) / 1200;
- pixel_brx = pixel_tlx +
- (ss->sio.scan_width * ss->sio.scan_x_resolution) / 1200;
- pixel_bry = pixel_tly +
- (ss->sio.scan_height * ss->sio.scan_y_resolution) / 1200;
-#endif
- _lto2l(pixel_tlx, window_data.frame.tl_x);
- _lto2l(pixel_tly, window_data.frame.tl_y);
- _lto2l(pixel_brx, window_data.frame.br_x);
- _lto2l(pixel_bry, window_data.frame.br_y);
-
-#if MUSTEK_WINDOWS >= 1
- window_data.window1 = window_data.frame;
- window_data.window1.header = MUSTEK_WINDOW_MASK | MUSTEK_UNIT_SPEC;
-#endif
-
- /* send the set window command to the scanner */
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_set_parms: set_window\n"));
- error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &window_cmd,
- sizeof(window_cmd), (u_char *) &window_data, sizeof(window_data),
- SCSI_RETRIES, 5000, NULL, SCSI_DATA_OUT);
- if (error)
- return (error);
-
- /*
- * do what it takes to actualize the mode
- */
- bzero(&mode_cmd, sizeof(mode_cmd));
- mode_cmd.opcode = MUSTEK_MODE_SELECT;
- _lto2b(sizeof(mode_data), mode_cmd.length);
-
- bzero(&mode_data, sizeof(mode_data));
- mode_data.mode =
- MUSTEK_MODE_MASK | MUSTEK_HT_PATTERN_BUILTIN | MUSTEK_UNIT_SPEC;
- if (ss->sio.scan_x_resolution <= 300) {
- mode_data.resolution = ss->sio.scan_x_resolution / 3;
- } else {
- /*
- * the resolution values is computed by modulo 100, but not
- * for 600dpi, where the value is 100 (a bit tricky, but ...)
- */
- mode_data.resolution =
- ((ss->sio.scan_x_resolution - 1) % 100) + 1;
- }
- mode_data.brightness = (ss->sio.scan_brightness - 64) / 3;
- mode_data.contrast = (ss->sio.scan_contrast - 16) / 7;
- mode_data.grain = 0;
- mode_data.velocity = ss->sio.scan_quality / 20 - 1;
-#ifdef MUSTEK_INCH_SPEC
- paperlength = 14 * 8; /* 14" */
-#else
- paperlength = 14 * ss->sio.scan_y_resolution; /* 14" */
-#endif
- _lto2l(paperlength, mode_data.paperlength);
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: mode_select\n"));
- /* send the command to the scanner */
- error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &mode_cmd,
- sizeof(mode_cmd), (u_char *) &mode_data, sizeof(mode_data),
- SCSI_RETRIES, 5000, NULL, SCSI_DATA_OUT);
- if (error)
- return (error);
-
- /*
- * now construct and send the start command
- */
- bzero(&start_scan_cmd,sizeof(start_scan_cmd));
- start_scan_cmd.opcode = MUSTEK_START_STOP;
- start_scan_cmd.mode = MUSTEK_SCAN_START;
- if (ss->sio.scan_x_resolution <= 300)
- start_scan_cmd.mode |= MUSTEK_RES_STEP_1;
- else
- start_scan_cmd.mode |= MUSTEK_RES_STEP_10;
- switch (ss->sio.scan_image_mode) {
- case SIM_BINARY_MONOCHROME:
- case SIM_DITHERED_MONOCHROME:
- start_scan_cmd.mode |= MUSTEK_BIT_MODE | MUSTEK_GRAY_FILTER;
- break;
- case SIM_GRAYSCALE:
- start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_GRAY_FILTER;
- break;
- case SIM_RED:
- start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_RED_FILTER;
- break;
- case SIM_GREEN:
- start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_GREEN_FILTER;
- break;
- case SIM_BLUE:
- start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_BLUE_FILTER;
- break;
- }
-
- /* send the command to the scanner */
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: start_scan\n"));
- error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &start_scan_cmd,
- sizeof(start_scan_cmd), NULL, 0,
- SCSI_RETRIES, 5000, NULL, 0);
- if (error)
- return (error);
-
- /*
- * now check if scanner ready this time with update of size info
- * we wait here so that if the user issues a read directly afterwards,
- * the scanner will respond directly (otherwise we had to sleep with
- * a buffer locked in memory)
- */
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: get_status\n"));
- error = mustek_get_status(ss, 60, 1);
- if (error)
- return (error);
-
- return (0);
-}
-
-/*
- * stop a scan operation in progress
- */
-int
-mustek_rewind_scanner(ss)
- struct ss_softc *ss;
-{
- struct mustek_start_scan_cmd cmd;
- struct scsi_link *sc_link = ss->sc_link;
- int error;
-
- if (ss->sio.scan_window_size != 0) {
- /*
- * only if not all data has been read, the scanner has to be
- * stopped
- */
- bzero(&cmd, sizeof(cmd));
- cmd.opcode = MUSTEK_START_STOP;
- cmd.mode = MUSTEK_SCAN_STOP;
-
- /* send the command to the scanner */
- SC_DEBUG(sc_link, SDEV_DB1,
- ("mustek_rewind_scanner: stop_scan\n"));
- error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd,
- sizeof(cmd), NULL, 0, SCSI_RETRIES, 5000, NULL, 0);
- if (error)
- return (error);
- }
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_rewind_scanner: end\n"));
-
- return (0);
-}
-
-/*
- * read the requested number of bytes/lines from the scanner
- */
-int
-mustek_read(ss, xs, bp)
- struct ss_softc *ss;
- struct scsi_xfer *xs;
- struct buf *bp;
-{
- struct mustek_read_cmd *cdb;
- u_long lines_to_read;
-
- SC_DEBUG(ss->sc_link, SDEV_DB1, ("mustek_read: start\n"));
-
- cdb = (struct mustek_read_cmd *)xs->cmd;
- xs->cmdlen = sizeof(*cdb);
-
- cdb->opcode = MUSTEK_READ;
-
- /* instead of the bytes, the mustek wants the number of lines */
- lines_to_read = bp->b_bcount /
- ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8);
- SC_DEBUG(ss->sc_link, SDEV_DB1, ("mustek_read: read %ld lines\n",
- lines_to_read));
- _lto3b(lines_to_read, cdb->length);
-
- xs->data = bp->b_data;
- xs->datalen = bp->b_bcount;
- xs->flags |= SCSI_DATA_IN;
- xs->done = mustek_read_done;
- xs->cookie = bp;
- xs->bp = bp;
-
- scsi_xs_exec(xs);
-
- return (0);
-}
-
-void
-mustek_read_done(struct scsi_xfer *xs)
-{
- struct ss_softc *ss = xs->sc_link->device_softc;
- struct buf *bp = xs->cookie;
- int error, s;
-
- switch (xs->error) {
- case XS_NOERROR:
- ss->sio.scan_lines -= bp->b_bcount /
- ((ss->sio.scan_pixels_per_line *
- ss->sio.scan_bits_per_pixel) / 8);
- ss->sio.scan_window_size -= bp->b_bcount;
- bp->b_error = 0;
- bp->b_resid = xs->resid;
- break;
-
- case XS_NO_CCB:
- /* The adapter is busy, requeue the buf and try it later. */
- BUFQ_REQUEUE(ss->sc_bufq, bp);
- scsi_xs_put(xs);
- SET(ss->flags, SSF_WAITING);
- timeout_add(&ss->timeout, 1);
- return;
-
- case XS_SENSE:
- case XS_SHORTSENSE:
-#ifdef SCSIDEBUG
- scsi_sense_print_debug(xs);
-#endif
- error = scsi_interpret_sense(xs);
- if (error == 0) {
- ss->sio.scan_lines -= bp->b_bcount /
- ((ss->sio.scan_pixels_per_line *
- ss->sio.scan_bits_per_pixel) / 8);
- ss->sio.scan_window_size -= bp->b_bcount;
- bp->b_error = 0;
- bp->b_resid = xs->resid;
- break;
- }
- if (error != ERESTART)
- xs->retries = 0;
- goto retry;
-
- case XS_BUSY:
- if (xs->retries) {
- if (scsi_delay(xs, 1) != ERESTART)
- xs->retries = 0;
- }
- goto retry;
-
- case XS_TIMEOUT:
-retry:
- if (xs->retries--) {
- scsi_xs_exec(xs);
- return;
- }
- /* FALLTHROUGH */
-
- default:
- bp->b_error = EIO;
- bp->b_flags |= B_ERROR;
- bp->b_resid = bp->b_bcount;
- break;
- }
-
- s = splbio();
- biodone(bp);
- splx(s);
- scsi_xs_put(xs);
-}
-
-/*
- * check if the scanner is ready to take commands
- * wait timeout seconds and try only every second
- * if update, then update picture size info
- *
- * returns EBUSY if scanner not ready
- */
-int
-mustek_get_status(ss, timeout, update)
- struct ss_softc *ss;
- int timeout, update;
-{
- struct mustek_get_status_cmd cmd;
- struct mustek_get_status_data data;
- struct scsi_link *sc_link = ss->sc_link;
- int error, lines, bytes_per_line;
-
- bzero(&cmd, sizeof(cmd));
- cmd.opcode = MUSTEK_GET_STATUS;
- cmd.length = sizeof(data);
-
- while (1) {
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_get_status: stat_cmd\n"));
- error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd,
- sizeof(cmd), (u_char *) &data, sizeof(data), SCSI_RETRIES,
- 5000, NULL, SCSI_DATA_IN);
- if (error)
- return (error);
- if ((data.ready_busy == MUSTEK_READY) ||
- (timeout-- <= 0))
- break;
- /* please wait a second */
- tsleep((caddr_t)mustek_get_status, PRIBIO + 1, "mtkrdy", hz);
- }
-
- if (update) {
- bytes_per_line = _2ltol(data.bytes_per_line);
- lines = _3ltol(data.lines);
- if (lines != ss->sio.scan_lines) {
- printf("mustek: lines actual(%d) != computed(%ld)\n",
- lines, ss->sio.scan_lines);
- return (EIO);
- }
- if (bytes_per_line * lines != ss->sio.scan_window_size) {
- printf("mustek: win-size actual(%d) != computed(%ld)\n",
- bytes_per_line * lines, ss->sio.scan_window_size);
- return (EIO);
- }
-
- SC_DEBUG(sc_link, SDEV_DB1,
- ("mustek_get_size: bpl=%ld, lines=%ld\n",
- (ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8,
- ss->sio.scan_lines));
- SC_DEBUG(sc_link, SDEV_DB1, ("window size = %ld\n",
- ss->sio.scan_window_size));
- }
-
- SC_DEBUG(sc_link, SDEV_DB1, ("mustek_get_status: end\n"));
- if (data.ready_busy == MUSTEK_READY)
- return (0);
- else
- return (EBUSY);
-}
-
-/*
- * mustek_compute_sizes: compute window_size and lines for the picture
- * this function is called from different places in the code
- */
-void
-mustek_compute_sizes(ss)
- struct ss_softc *ss;
-{
-
- switch (ss->sio.scan_image_mode) {
- case SIM_BINARY_MONOCHROME:
- case SIM_DITHERED_MONOCHROME:
- ss->sio.scan_bits_per_pixel = 1;
- break;
- case SIM_GRAYSCALE:
- case SIM_RED:
- case SIM_GREEN:
- case SIM_BLUE:
- ss->sio.scan_bits_per_pixel = 8;
- break;
- }
-
- /*
- * horizontal number of bytes is always a multiple of 2,
- * in 8-bit mode at least
- */
- ss->sio.scan_pixels_per_line =
- (ss->sio.scan_width * ss->sio.scan_x_resolution) / 1200;
- if (ss->sio.scan_bits_per_pixel == 1)
- /* make it a multiple of 16, and thus of 2 bytes */
- ss->sio.scan_pixels_per_line =
- (ss->sio.scan_pixels_per_line + 15) & 0xfffffff0;
- else
- ss->sio.scan_pixels_per_line =
- (ss->sio.scan_pixels_per_line + 1) & 0xfffffffe;
-
- ss->sio.scan_lines =
- (ss->sio.scan_height * ss->sio.scan_y_resolution) / 1200;
- ss->sio.scan_window_size = ss->sio.scan_lines *
- ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8);
-}